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SINTERED POLYCRYSTALLINE CUBIC BORON NITRIDE MATERIAL
To provide a method of making polycrystalline cubic boron nitride (PCBN) material.SOLUTION: The invention provides polycrystalline cubic boron nitride (PCBN) material and a method of making PCBN. The method includes providing a matrix precursor powder comprising particles having an average particle size no greater than 250 nm, providing a cubic boron nitride (cBN) powder comprising particles of cubic boron nitride (cBN) having an average particle size of at least 0.2 μm, homogeneously mixing the matrix precursor powder and the cBN powder, and sintering the homogeneously mixed powders at at least 1100°C and a pressure of at least 3.5 GPa to form the PCBN material comprising particles of cubic boron nitride (cBN) dispersed in a matrix material.SELECTED DRAWING: Figure 3
【課題】多結晶立方晶窒化ホウ素(PCBN)材料を製造する方法を提供する。【解決手段】多結晶立方晶窒化ホウ素(PCBN)材料およびPCBNの製造方法。この方法は、平均粒径が250nm以下の粒子を含むマトリックス前駆物質粉末を用意するステップと、平均粒径が少なくとも0.2μmの立方晶窒化ホウ素(cBN)の粒子を含む立方晶窒化ホウ素(cBN)粉末を用意するステップと、マトリックス前駆物質粉末とcBN粉末を均質に混合するステップと、均質混合粉末を少なくとも1100℃および少なくとも3.5GPaの圧力で焼結して、マトリックス材料中に分散させた立方晶窒化ホウ素(cBN)の粒子を含むPCBN材料を形成するステップとを含む。【選択図】図3
SINTERED POLYCRYSTALLINE CUBIC BORON NITRIDE MATERIAL
To provide a method of making polycrystalline cubic boron nitride (PCBN) material.SOLUTION: The invention provides polycrystalline cubic boron nitride (PCBN) material and a method of making PCBN. The method includes providing a matrix precursor powder comprising particles having an average particle size no greater than 250 nm, providing a cubic boron nitride (cBN) powder comprising particles of cubic boron nitride (cBN) having an average particle size of at least 0.2 μm, homogeneously mixing the matrix precursor powder and the cBN powder, and sintering the homogeneously mixed powders at at least 1100°C and a pressure of at least 3.5 GPa to form the PCBN material comprising particles of cubic boron nitride (cBN) dispersed in a matrix material.SELECTED DRAWING: Figure 3
【課題】多結晶立方晶窒化ホウ素(PCBN)材料を製造する方法を提供する。【解決手段】多結晶立方晶窒化ホウ素(PCBN)材料およびPCBNの製造方法。この方法は、平均粒径が250nm以下の粒子を含むマトリックス前駆物質粉末を用意するステップと、平均粒径が少なくとも0.2μmの立方晶窒化ホウ素(cBN)の粒子を含む立方晶窒化ホウ素(cBN)粉末を用意するステップと、マトリックス前駆物質粉末とcBN粉末を均質に混合するステップと、均質混合粉末を少なくとも1100℃および少なくとも3.5GPaの圧力で焼結して、マトリックス材料中に分散させた立方晶窒化ホウ素(cBN)の粒子を含むPCBN材料を形成するステップとを含む。【選択図】図3
SINTERED POLYCRYSTALLINE CUBIC BORON NITRIDE MATERIAL
焼結多結晶立方晶窒化ホウ素材料
ANNE MYRIAM MEGNE MOTCHELAHO (Autor:in) / SANTONU GHOSH (Autor:in) / ANTIONETTE CAN (Autor:in)
24.12.2020
Patent
Elektronische Ressource
Japanisch
IPC:
C04B
Kalk
,
LIME
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